First, the output of salmon and roe is low. The reason why they are expensive is that their output is very low. Many authentic salmon are few in quantity, and these fish are difficult to salvage, so it is more difficult to eat authentic salmon. That is to say, they are expensive, and the nutritional value of salmon and fish eggs is very rich, so many people like to eat salmon and fish eggs very much, but they are hard to eat.
Second, salmon and fish eggs are rich in nutritional value. Another aspect of their high price is that they are very rich in nutritional value. Anyone who has eaten salmon knows that salmon tastes good. The entrance is soft and soft, with the unique phenomenon of seafood, which is why most people like to eat salmon. Salmon meat contains a lot of saturated fatty acids, which can strengthen cardiovascular and cerebrovascular circulation after eating, and the nutritional value of fish eggs is more abundant. Many authentic roe deer are hard to find. If you are lucky enough to eat them, you must cherish them.
Third, the storage conditions remain unchanged. Many restaurants eat salmon and fish eggs in the form of sashimi, which makes it inconvenient to store salmon, so we must eat fresh salmon. However, fresh salmon is difficult to produce in China, so it is difficult to store it by water or air. This is another reason why salmon is expensive, but many people are not used to eating salmon and don't like the taste of this fish. Moreover, they are also disgusted with this way of sashimi, fearing that it will bring diseases to their bodies. This is also quite correct. They are worried that this way of eating sashimi will easily lead to physical illness, so they must pay attention to it in peacetime.